! Swift/XRT lightcurve of trigger: 21009, name: GRB 200709B - source 4
 ! T0 for this burst is Swift MET=615962107.0 s, = 2020 Jul 09 at 04:34:41.637 UT
 ! Data covers 0.3-10 keV
 ! The data are in 5 columns:  ! time, time error (+ve), time error (-ve), source flux, source error
 ! For a detailed description of light curve production, see Evans et al. 2007 (A&A, 469, 379 )
 ! For a detailed description of the file, see
 ! http://www.swift.ac.uk/xrt_curves/docs.php
 ! This lightcurve was obtained from http://www.swift.ac.uk/xrt_curves/00021009
 ! BINMODE: GRB-like (counts)

READ TERR 1 2
! PC data
!Time    	T_+ve   	T_-ve   	Flux    	Fluxpos 	Fluxneg
36085.492	11125.023	-30939.906	5.93406587457821e-14	3.19191012119614e-14	-2.35544321402696e-14